地球防御术，关键时刻能拯救全人类【暴虐朗读】

【头条播报】
NASA’s DART spacecraft successfully slammed into a distant asteroid at hypersonic speed in a test of the world's first planetary defense system. The mission was devised to determine whether a spacecraft is capable of changing the trajectory of an asteroid through sheer kinetic force, nudging it off course just enough to keep it from impacting the planet. NASA officials said whether the experiment succeeded was beyond actually hitting the target, and that the result would not be known until further ground-based telescope observations of the asteroid's path were made.

【朗读要点】
①NASA’s DART spacecraft successfully slammed into a distant asteroid at hypersonic speed in a test of the world's first planetary defense system.

in之前稍顿；有s音的单词念完整
NASA's DART spacecraft successfully slammed into a distant asteroid at hypersonic speed … in a test of the world's first planetary defense system.

②The mission was devised to determine whether a spacecraft is capable of changing the trajectory of an asteroid through sheer kinetic force, nudging it off course just enough to keep it from impacting the planet.

whether前停顿一次，逗号后再停顿一次；注意连读
The mission was devised to determine … whether a spacecraft is capable of <changing the trajectory of an asteroid> <through sheer kinetic force>, … <nudging it off course just enough> to keep it from impacting the planet. 

③NASA officials said whether the experiment succeeded was beyond actually hitting the target, and that the result would not be known until further ground-based telescope observations of the asteroid's path were made.

whether the experiment succeeded之后停顿，逗号后停顿，until之前停顿
NASA officials said <whether the experiment succeeded> … was beyond actually hitting the target, … and that the result would not be known … until <further ground-based telescope observations of the asteroid's path> were made. 

【朗读练习】
NASA’s DART spacecraft successfully slammed into a distant asteroid at hypersonic speed in a test of the world's first planetary defense system. The mission was devised to determine whether a spacecraft is capable of changing the trajectory of an asteroid through sheer kinetic force, nudging it off course just enough to keep it from impacting the planet. NASA officials said whether the experiment succeeded was beyond actually hitting the target, and that the result would not be known until further ground-based telescope observations of the asteroid's path were made.